Home / 120,645.24-180,938.70-50,577

Finding the Fourth Proportional to 120,645.24, 180,938.70 and 50,577

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Solution

The fourth proportional to 120,645.24, 180,938.70 and 50,577 is: 75,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,645.24 : 180,938.70 = 50,577 : x
  2. Step 2: Convert to fraction form
    120,645.24/180,938.70 = 50,577/x
  3. Step 3: Cross multiply
    120,645.24x = 180,938.70 × 50,577
  4. Step 4: Simplify right side
    120,645.24x = 9,151,336,629.90
  5. Step 5: Solve for x
    x = 9,151,336,629.90/120,645.24
  6. Step 6: Final answer
    x = 75,853.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.